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LM7332MM/NOPB Equivalent & Substitute Parts
Part Overview
The LM7332MM/NOPB is a general-purpose operational amplifier manufactured by Texas Instruments, featuring dual circuits in an 8-VSSOP surface-mount package. This device operates across a wide supply voltage range of 2.5 V to 32 V with rail-to-rail output capability and is designed for applications requiring moderate bandwidth and slew rate performance.
The LM7332MM/NOPB carries a Last Time Buy product status, indicating that Texas Instruments has discontinued this part number. Identifying equivalent and substitute components is necessary to ensure design continuity, maintain supply chain reliability, and support long-term production requirements for systems currently utilizing this amplifier.
Substiute Parts
Key Parameters
| Parameter | Value | Unit |
|---|---|---|
| Amplifier Type | General Purpose | |
| Number of Circuits | 2 | |
| Output Type | Rail-to-Rail | |
| Slew Rate | 12 | V/µs |
| Gain Bandwidth Product | 21 | MHz |
| Current - Input Bias | 1 | µA |
| Voltage - Input Offset | 2 | mV |
| Current - Supply (per Channel) | 2 | mA |
| Current - Output / Channel | 70 | mA |
| Voltage - Supply Span (Min) | 2.5 | V |
| Voltage - Supply Span (Max) | 32 | V |
| Operating Temperature Range | -40 to 125 | °C |
| Mounting Type | Surface Mount | |
| Package / Case | 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) | |
| RoHS Status | ROHS3 Compliant | |
| Moisture Sensitivity Level | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitution of the LM7332MM/NOPB is determined by strict alignment of electrical and mechanical parameters. The following criteria establish valid substitute relationships:
Primary Substitution Criteria:
- Dual-circuit general-purpose operational amplifier configuration
- Rail-to-rail output capability
- Surface-mount package compatibility (8-VSSOP or 8-MSOP)
- Operating temperature range: -40°C to 125°C
- Supply voltage range: minimum 2.5 V, maximum 32 V
- RoHS3 compliance and MSL 1 rating
Secondary Performance Parameters: Substitutes must maintain electrical performance within acceptable operating margins. The LM7332MM/NOPB establishes baseline performance with 12 V/µs slew rate, 21 MHz gain-bandwidth product, 1 µA input bias current, and 2 mV input offset voltage. Substitute parts may exhibit different performance characteristics while remaining functionally compatible for general-purpose amplification applications.
Packaging Considerations: The LM7332MM/NOPB is supplied in Cut Tape (CT) & Digi-Reel® packaging. Substitutes are available in equivalent packaging formats including Tape & Reel (TR) and alternative cut tape configurations, all maintaining identical pinout and footprint compatibility.
Parameter Comparison
| Part Number | Manufacturer | Slew Rate (V/µs) | GBW (MHz) | Input Bias (nA/µA) | Input Offset (µV/mV) | Supply Current (µA/mA) | Output Current (mA) | Supply Min (V) | Supply Max (V) | Package | Status |
|---|---|---|---|---|---|---|---|---|---|---|---|
| LM7332MM/NOPB | Texas Instruments | 12 | 21 | 1 µA | 2 mV | 2 mA | 70 | 2.5 | 32 | 8-VSSOP | Last Time Buy |
| LM7332MMX/NOPB | Texas Instruments | 12 | 21 | 1 µA | 2 mV | 2 mA | 70 | 2.5 | 32 | 8-VSSOP | Active |
| ADA4084-2ARMZ | Analog Devices Inc. | 4.6 | 15.9 | 140 nA | 60 µV | 625 µA | 30 | 3 | 30 | 8-MSOP | Active |
| ADA4084-2ARMZ-R7 | Analog Devices Inc. | 4.6 | 15.9 | 140 nA | 60 µV | 625 µA | 30 | 3 | 30 | 8-MSOP | Active |
| ADA4084-2ARMZ-RL | Analog Devices Inc. | 4.6 | 15.9 | 140 nA | 60 µV | 625 µA | 30 | 3 | 30 | 8-MSOP | Active |
| ADA4096-2ARMZ | Analog Devices Inc. | 0.4 | 0.786 | 3 nA | 35 µV | 60 µA | 10 | 3 | 30 | 8-MSOP | Active |
| ADA4096-2ARMZ-R7 | Analog Devices Inc. | 0.4 | 0.786 | 3 nA | 35 µV | 60 µA | 10 | 3 | 30 | 8-MSOP | Active |
| ADA4096-2ARMZ-RL | Analog Devices Inc. | 0.4 | 0.786 | 3 nA | 35 µV | 60 µA | 10 | 3 | 30 | 8-MSOP | Active |
| ADA4096-2WARMZ-R7 | Analog Devices Inc. | 0.4 | 0.786 | 3 nA | 35 µV | 60 µA | 10 | 3 | 30 | 8-MSOP | Active |
| ADA4096-2WARMZ-RL | Analog Devices Inc. | 0.4 | 0.786 | 3 nA | 35 µV | 60 µA | 10 | 3 | 30 | 8-MSOP | Active |
| ISL28218FUZ-T13 | Renesas Electronics Corporation | 1.2 | 4 | 230 nA | 40 µV | 850 µA | 28 | 3 | 40 | 8-MSOP | Active |
Engineering Selection Recommendations
Direct Equivalent (Recommended Primary Substitute):
The LM7332MMX/NOPB is the direct equivalent to the LM7332MM/NOPB. Both parts are manufactured by Texas Instruments, share identical electrical specifications, and maintain the same 8-VSSOP package footprint. The LM7332MMX/NOPB carries Active product status, ensuring long-term availability and supply continuity. This part is supplied in Tape & Reel (TR) packaging, which is standard for production environments. Selection of LM7332MMX/NOPB requires no circuit redesign or validation.
Alternative Substitutes (Cross-Manufacturer Options):
The ADA4084-2ARMZ series (Analog Devices Inc.) and ADA4096-2ARMZ series (Analog Devices Inc.) are functionally compatible alternatives. All three manufacturers' parts maintain dual-circuit general-purpose amplifier architecture, rail-to-rail output, surface-mount packaging, and identical operating temperature ranges. All substitute parts carry ROHS3 compliance and MSL 1 ratings, meeting regulatory and environmental requirements equivalent to the original part.
The ISL28218FUZ-T13 (Renesas Electronics Corporation) is also compatible, with the exception of an extended maximum supply voltage specification of 40 V compared to the LM7332MM/NOPB maximum of 32 V. This part maintains all other critical parameters within acceptable operating ranges.
Packaging and Supply Chain Considerations:
Substitute parts are available in multiple packaging formats: Cut Tape (CT) & Digi-Reel®, Tape & Reel (TR), and Tube. Selection should align with production assembly requirements and inventory management practices. All substitute parts maintain identical pinout and footprint compatibility with the original LM7332MM/NOPB, eliminating the need for PCB redesign.
Frequently Asked Questions (FAQ)
Q: Can I directly replace LM7332MM/NOPB with LM7332MMX/NOPB without circuit modification?
A: Yes. The LM7332MMX/NOPB is the direct equivalent with identical electrical specifications and pinout. No circuit modification is required. The only difference is packaging format (Tape & Reel versus Cut Tape & Digi-Reel®).
Q: What are the key differences between the LM7332MM/NOPB and the ADA4084-2ARMZ?
A: The ADA4084-2ARMZ exhibits lower slew rate (4.6 V/µs versus 12 V/µs), lower gain-bandwidth product (15.9 MHz versus 21 MHz), lower input bias current (140 nA versus 1 µA), and lower output current capability (30 mA versus 70 mA). The ADA4084-2ARMZ also requires a minimum supply voltage of 3 V compared to 2.5 V for the LM7332MM/NOPB. These differences may impact applications requiring high-speed signal processing or low-voltage operation.
Q: Is the ADA4096-2ARMZ suitable as a substitute for the LM7332MM/NOPB?
A: The ADA4096-2ARMZ is functionally compatible but exhibits significantly different performance characteristics. It features substantially lower slew rate (0.4 V/µs), lower gain-bandwidth product (786 kHz), and lower output current (10 mA). This part is optimized for low-power, low-noise applications rather than general-purpose amplification at moderate to high frequencies. Selection requires application-specific evaluation.
Q: What is the difference between ADA4084-2ARMZ, ADA4084-2ARMZ-R7, and ADA4084-2ARMZ-RL?
A: These three part numbers are electrically identical. The suffix designates packaging format: standard Tube, Cut Tape (CT) & Digi-Reel® (-R7), and Tape & Reel (-RL). Selection depends on production assembly and inventory management requirements.
Q: Are all substitute parts RoHS3 compliant?
A: Yes. All substitute parts listed carry ROHS3 compliance certification, meeting regulatory requirements equivalent to the original LM7332MM/NOPB.
Q: What is the significance of MSL (Moisture Sensitivity Level) ratings?
A: The LM7332MM/NOPB and all listed substitutes carry MSL 1 rating, indicating unlimited shelf life without moisture-related degradation. This ensures consistent component reliability across extended storage periods and simplifies inventory management. The ISL28218FUZ-T13 carries MSL 2 rating, requiring one-year shelf life management protocols.
Q: Can I use ISL28218FUZ-T13 in applications designed for LM7332MM/NOPB?
A: The ISL28218FUZ-T13 is functionally compatible with identical pinout and package footprint. However, it exhibits lower slew rate (1.2 V/µs), lower gain-bandwidth product (4 MHz), and higher supply current (850 µA). The extended maximum supply voltage (40 V) provides additional design margin. Application-specific performance evaluation is necessary before substitution.
Q: What packaging options are available for substitute parts?
A: Substitute parts are available in three packaging formats: Cut Tape (CT) & Digi-Reel®, Tape & Reel (TR), and Tube. All maintain identical 8-VSSOP or 8-MSOP pinout and footprint. Selection should align with production assembly equipment and inventory management systems.
Q: Are there any supply voltage limitations I should consider when substituting?
A: The LM7332MM/NOPB operates from 2.5 V to 32 V. The ADA4084-2ARMZ and ADA4096-2ARMZ series require minimum 3 V supply voltage. The ISL28218FUZ-T13 operates from 3 V to 40 V. Applications requiring 2.5 V minimum supply voltage must use the LM7332MMX/NOPB or original LM7332MM/NOPB.
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